package org.yjy.pvd.codetable;

import java.util.HashMap;
import java.util.Map;

public class AccountCT {

    private static Map nations;

    public static Integer nationsStringByInteger(){
        if (nations==null){
            synchronized (AccountCT.class){
                if(nations==null){
                    //初始化nations
                    nations = new HashMap<>();

                }
            }
        }
        return null;
    }


}
